Crankcase Assembly with 3-1/2in. Bore - Natural. Fits Big Twin 1984-1991 - S&S Brake Upgrades - Front * Regulator covers & Low

* Regulator covers & Low Mount Oil Coolers can block air flow & reduce heat dissipation

including Electra Glide and Street Glide series

1 x MS-AS3521

* There will be a variance in the length of the gap between the seat & tank depending model

* Fits XL1200C Sportster 1200 Custom 2011-2015

Crankcase Assembly with 3-1/2in. Bore - Natural. Fits Big Twin 1984-1991 - S&S Brake Upgrades - Front * Regulator covers & LowFeatures & Benefits: * Natural Aluminium Finish. * Perfect for stock replacement & high performance applications * These crankcases offer some unique features. * Besides being machined for a crank position sensor, they are also compatible with stock flywheel assemblies, primary covers, gearcovers and are clearanced for 38 amp alternator stators. * Relocated cam chest oil pick up increases gear case scavenging & virtually eliminates oil carry over at